2 medium onions, thinly sliced
1 cup no-salt-added tomato sauce
1 Tbsp. apple cider vinegar
Garlic powder and black pepper to taste
Place all ingredients in small saucepan. Bring to a boil, and
then reduce to simmer.
Cook until onions are soft and sauce has thickened and becomes
flavorful.
Use as a burger topping.